Animal Responses

Question 1

Mammalian nervous system parts

Answer 1

Central Nervous system (brain and spinal cord)

Peripheral nervous system (the neurons that connect the CNS to the rest of the body)

Question 2

Parts of the peripheral nervous system

Answer 2

Somatic nervous system (controls conscious activities)

Autonomic nervous system (controls unconscious activities)

Question 3

The function of the cerebrum

Answer 3

Vision
Hearing
Learning
Thinking

Question 4

The function of the hypothalamus

Answer 4

Controlling body temperature and producing hormones that control the pituitary gland

Question 5

Function of medulla oblongata

Answer 5

Controlling breathing and heart rate

Question 6

Function of the cerebellum

Answer 6

Muscle coordination
Posture
Balance

Question 7

Function of the pituitary gland

Answer 7

Releasing hormones and stimulating other glands

Question 8

Reflex action

Answer 8

A rapid involuntary response that doesn’t involve conscious parts of the brain and helps protect the body from damage

Question 9

Reflex action

Answer 9

Stimulus ----
receptors -----(using sensory neurones) 
CNS (relay neurone in unconscious part of brain/ spinal cord)---. (using motor neurones)
Effectors -----
Response

Question 10

Blinking reflex

Answer 10

Stimulus: something touches your eye

Receptors: sensory nerve endings in the cornea detect the touch stimulus. A nerve impulse is sent along the sensory neurone to a relay neurone in the CNS

CNS: the impulse is then passed from the relay neurone to motor neurons

Effector: the motor neurons send impulses to the orbicularis oculi muscle that move your eyelids.

Response: these muscles contract causing your eyelids to close quickly and prevent your eye being damaged

Question 11

Knee jerk reflex

Answer 11

Stimulus: your quadriceps muscle is stretched.

Receptors: stretch receptors in the quadriceps muscles detect the muscles being stretched. A nerve impulse is passed along a sensory neurone.

CNS: sensory neurone communicates directly with the motor neurone in the spinal cord (no relay neurone)

Effector: the motor neurone carries nerve impulses to the quadriceps muscles

Response: quadriceps muscles contract so the lower leg moves forward quickly.